CVE-2020-27199
📋 TL;DR
CVE-2020-27199 allows attackers to bypass authentication in the Magic Home Pro Android app by forging user tokens without valid credentials. This affects Android users of the Magic Home Pro application version 1.5.1 who control smart home devices through this app. Attackers can gain unauthorized access to victim accounts and their connected smart home systems.
💻 Affected Systems
- Magic Home Pro
📦 What is this software?
Magic Home Pro by Magic Home Pro Project
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain full control over victim's smart home devices, potentially enabling physical security breaches, surveillance, property damage, or theft.
Likely Case
Unauthorized access to smart home controls allowing manipulation of lights, appliances, or other connected devices, potentially causing inconvenience or minor property issues.
If Mitigated
No impact if proper authentication controls prevent token forgery and validate credentials correctly.
🎯 Exploit Status
Attack involves enumeration to forge user tokens without password. Public technical details available in referenced advisories.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 1.5.1
Vendor Advisory: https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/magic-home-pro-mobile-application-authentication-bypass-cve-2020-27199/
Restart Required: No
Instructions:
1. Open Google Play Store 2. Search for Magic Home Pro 3. Check for updates 4. Install latest version 5. Verify version is newer than 1.5.1
🔧 Temporary Workarounds
Uninstall vulnerable app
androidRemove the vulnerable application version to prevent exploitation
Settings > Apps > Magic Home Pro > Uninstall
Disable app network permissions
androidRestrict app network access to prevent token communication
Settings > Apps > Magic Home Pro > Permissions > Disable Network Access
🧯 If You Can't Patch
- Disconnect smart home devices from the vulnerable app and use alternative control methods
- Implement network segmentation to isolate smart home devices from other critical systems
🔍 How to Verify
Check if Vulnerable:
Check app version in Settings > Apps > Magic Home Pro > App Info. If version is 1.5.1, system is vulnerable.Check Version:
Not applicable - check through Android app settings interfaceVerify Fix Applied:
Update app through Play Store and confirm version is newer than 1.5.1 in app settings.📡 Detection & Monitoring
Log Indicators:
- Multiple failed authentication attempts followed by successful access
- Unusual user token generation patterns
- Access from unexpected locations or devices
Network Indicators:
- Unusual API calls to authentication endpoints
- Token requests without preceding valid login
SIEM Query:
source="android_app" app="Magic Home Pro" (event="authentication_bypass" OR event="token_forgery")